Update Dockerfile to use edge

Author: mikhail-vl

Dockerfile

@@ -1,6 +1,6 @@
-FROM redislabs/redisearch:latest as redisearch
-FROM redislabs/redisgraph:latest as redisgraph
-FROM redislabs/rejson:latest as rejson
+FROM redislabs/redisearch:edge as redisearch
+FROM redislabs/redisgraph:edge as redisgraph
+FROM redislabs/rejson:edge as rejson
 FROM redislabs/redisgears:edge
 
 ENV LD_LIBRARY_PATH=/usr/lib/redis/modules
@@ -31,4 +31,4 @@ CMD ["--loadmodule", "/usr/lib/redis/modules/redisearch.so", \
     "--loadmodule", "/usr/lib/redis/modules/redisgraph.so", \
     "--loadmodule", "/usr/lib/redis/modules/rejson.so", \
     "--loadmodule", "/var/opt/redislabs/lib/modules/redisgears.so", \
-    "Plugin", "/var/opt/redislabs/modules/rg/plugin/gears_python.so"]
+    "Plugin", "/var/opt/redislabs/modules/rg/plugin/gears_python.so"]